The triangle-shaped space between teeth, especially near the gumline, is called an open gingival embrasure, often referred to as a black triangle.
Understanding Open Gingival Embrasures (Black Triangles)
These "black triangles" are essentially gaps where the gum tissue doesn't completely fill the space between the teeth. While small gaps can be normal, new or widening gaps can signal underlying dental issues.
- Appearance: They appear as dark, triangular spaces between the teeth near the gumline.
- Location: Most commonly found between the lower front teeth (incisors).
Causes of Black Triangles
Several factors can contribute to the development of these gaps:
- Gum Recession: This is a primary cause, often due to periodontal disease (gum disease), aggressive brushing, or aging.
- Tooth Shape: Teeth that are more triangular in shape are more likely to have black triangles.
- Tooth Movement: Orthodontic treatment (braces) or other tooth movement can sometimes create or exacerbate these gaps.
- Bone Loss: Loss of supporting bone around the teeth, usually due to periodontal disease, can lead to gum recession and black triangles.
- Post-Surgical Procedures: Some dental procedures can inadvertently lead to gum recession.
Treatment Options
While not always necessary, treatment options exist to address black triangles for aesthetic and functional reasons:
- Dental Bonding: A tooth-colored resin is applied to fill the gap.
- Veneers: Thin porcelain shells are bonded to the front of the teeth to close the gaps.
- Crowns: Covering the entire tooth can change its shape and close the gaps.
- Gum Grafting: In some cases, gum tissue can be grafted to restore the gum line.
- Bioclear Method: Involves using thin forms to shape composite resin, creating a smooth, seamless restoration that fills the black triangle.
Prevention
Preventing black triangles involves good oral hygiene and addressing potential issues early:
- Proper Brushing Technique: Use a soft-bristled toothbrush and avoid aggressive scrubbing.
- Regular Flossing: Helps remove plaque and prevent gum disease.
- Regular Dental Checkups: Allow your dentist to detect and treat gum disease early.
- Avoid Smoking: Smoking significantly increases the risk of gum disease.
In summary, the triangle between teeth, when referring to a gap due to missing gum tissue, is called an open gingival embrasure, commonly known as a black triangle. Good oral hygiene and regular dental visits are key to preventing their formation.
